I don't see how this is a win for 252 Adamant, you are 2HKOing no matter what.
Yeah, but with no Attack investment Life Orb Gastly can hit you on the switch-in, hit you again and still survive your Pursuit (which sucks a lot if Sludge Bomb poisons you). You also don't 2HKO if it has Oran.
Why are you fighting Dratini with Munchlax?
Because Dratini can't set up on much else? It's surprisingly frequent, especially in late-game situations.
See above, and before you say that Koffing can't beat Munchlax, Koffing has WoW, Pain Split/Explosion, and a 90 bp stab move off of a decent special attack.
True. But Munchlax vs. Munchlax is always useful, for endgame scenarios etc.
Staryu runs life orb 70% of the time so it should always KO after an attack and SR and if Staryu is not running LO then Hydro Pump won't be hurting too bad.
They keep coming in on me, it's weird.
This is really not a win for 252 adamant at all Koffing an Munchlax is a type of combo that should always be run with entry hazards.
Obviously, but Stealth Rock is really easy to stop in LC, especially as the lead metagame is so offensive (and the most reliable lead, Bronzor, is redundant with MunchFing).
Body Slam is very up for debate but I find the 30% paralysis rate truly awesome in such as speed centered metagame as lc.
Yeah, the 30% para rate is good, but compare it to the KOs you lose and it really isn't worth it.
edit: I'll give defensive calc for the 2 spreads later